Vida Software/app Features
   - work in progress  - no  - yes
CALLS SIP XMPP
Audio calls
Video Calls<
Desktop streaming
Audio conference calls
Audio level display
Call recording
Attended transfer
Blind transfer
Call encryption with SDES/SRTP and ZRTP
Mute
Hold
Support for ICE
Wideband audio with SILK, G.722 and Speex
Noise suppression
Echo cancellation
 
INSTANT MESSAGING XMPP MSN Yahoo! ICQ/AIM SIP
Presence
One-to-one chats
Multi-user chats
File transfer
OTR encryption
SECURITY
  • Encrypted password storage 
  • Password protection with a master password 
  • Encrypted Instant Messaging with Off-the-Record Messaging (OTR) 
  • Call encryption with SRTP and ZRTP for XMPP and SIP 
  • Call encryption with SRTP and SDES for XMPP and SIP 
  • DNSSEC support 
  • TLS support and certificate-based client authentication for SIP and XMPP 
CODECS
  • Audio: Opus, SILK, Speex, G.722, PCMU/PCMA (G.711), iLBC, GSM, G.729 Annex C (requires compilation and licenses) 
  • Video: H.264, H.263-1998 / H.263+, (VP8 coming soon…)
MISCELLANEOUS
  • IPv6 fully supported by SIP and XMPP
  • Call history 
  • Missed call notifications
  • Systray notifications (using Swing, Growl or libnotify)
  • Drag and drop support for file transfer
  • Integration with Microsoft Outlook and Apple Address Book
  • Presence Integration with Microsoft Outlook: make calls, start chats and see your contacts' presence from within Microsoft Outlook
  • Support for LDAP directories
  • Support for Google Contacts 
  • Cross protocol conference calls: call your contacts over different accounts and protocols and join them in a single conference call.
SIP SPECIFIC
  • On-line contact list storage with XCAP 
  • Secure signalling with TLS 
  • DTMF (SIP INFO, RTP RFC 2833/4733, inband) 
  • Message Waiting Indication (RFC 3842) 
  • Certificate-based client authentication 
XMPP SPECIFIC
  • DTMF (RTP RFC 2833/4733, inband) 
  • Correcting previously sent messages (XEP-0308 Last Message Correction) 
  • Certificate-based client authentication